Bakcou FLATLANDER SD Super Duty 52V/20Ah Dual-Speed 750W Hub Motor Step-Through Ebike

⚡750W Dual SpeedBafang Rear Hub Motor

⚡Downtube Integrated Battery 20Ah Extended to extra 15Ah 0r 20Ah

⚡Tektro Dual Piston Hydraulic Disc Brakes w/ Automatic Motor Inhibitors

⚡9-Speed Gears

⚡5-Level Pedal Assist Systems (PAS) + Thumb Throttle and

⚡24” and 26” tires options; tailored to height and athletic ability

Flatlander SD Description

The ultimate dual‑speed, long‑range hunting e‑bike built to conquer flatlands and rolling hills.

When your adventures follow sprawling valley floors, open prairies or winding forest roads rather than steep ridgelines, the Flatlander SD is built to go the distance. At its heart is the new RMG062A dual‑speed internal hub motor — a 750 W Bafang rear hub that delivers 85 Nm of torque and uses torque‑sensing technology for smooth, responsive power. Because the gearing is enclosed inside the hub, there’s no derailleur to hang up or break; you get a single‑speed chain ring paired with internal two‑speed gearing (40‑tooth front, 22‑tooth rear), meaning pure, silent thrust whenever you need it. This motor is fed by a 52 V 20 Ah integrated lithium‑ion battery, and serious distance riders can bolt on an additional 15 Ah or 20 Ah battery via the modular quick‑release rack for up to 40 Ah of total capacity—perfect for day‑long scouting trips or touring remote ranchland without range anxiety.

Bakcou’s engineers paired that powertrain with a rugged Air‑Craft 6061 aluminum alloy frame, a helical‑spring 100 mm front fork and a shock‑absorbing suspension seat post to soak up washboard roads and rocky two‑tracks. Wide 4‑inch CST tires mounted on 24‑inch or 26‑inch wheels provide stability and traction on sand, mud or gravel, while the quad‑piston hydraulic brakes with 203 mm rotors offer confident stopping power. A removable left‑thumb throttle allows you to ease through tight sections. Slip‑resistant wide‑stance pedals, a rear pannier rack, chain‑stay protector and puncture‑proof liners mean the Flatlander SD is ready for serious back‑country work. The integrated stem‑mount display with Bakcou’s On‑Demand Program (ODP) lets you customize your speed class and monitor vital stats. Optional Bakcou Connect brings smartphone‑enabled GPS tracking, battery‑health monitoring and remote locking, so you know the location and condition of your bike at all times. The Flatlander SD gives flat‑ground explorers and long‑range hunters uncompromising reliability.

Bakcou has combined the power and performance of the Bafang 750W Duel Speed rear hub motor with the same bulletproof aluminum alloy frame, and high-end components, that you expect in a Bakcou fat tire electric hunting bike, and created the Flatlander Step-Through.

As with each of their hunting eBikes, it’s all in the details, and that’s why Bakcou uses wide handlebars and locking handle grips for a greater base of support. They use a wide stance, deep cleated pedals, with wide holes to grip your boots and avoid the accumulation of mud or snow.

Their color LCD display allows for ease of use when cruising down the trail, while the unparalleled traction and control of the Maxxis Minion fat tires allow you to go where you want to go with confidence. 

• Dual-speed motor (no derailluer)
• Dual battery option (40 total amp hours)
• Bakcou connect compatible
• Modular Rack with Quick Release System
• Integrated Display with ODP System
• US Made Components
• US based; industry leading customer service

Design

The Flatlander SD is built for comfort, efficiency, and all-day riding. Its 6061 aircraft-grade aluminum step-through frame makes mounting and dismounting easy while maintaining strength and durability. The geometry is designed for a more upright riding position, reducing fatigue and improving comfort whether you're cruising roads, bike paths, or light off-road terrain.

Drivetrain

The Flatlander SD features a single-speed drivetrain paired with dual internal motor gearing, creating a simple and low-maintenance system built for efficiency. With a 40T front chainring and 22T rear cog, this setup eliminates complex shifting while still providing the power and range needed for a variety of riding conditions.

Motor and Power

At the core of the Flatlander SD is the RMG062A Bafang 750W rear hub motor with an internal 2-speed gearing system. Producing up to 85Nm of torque and paired with torque-sensing technology, this system delivers smooth, responsive power while automatically optimizing performance across different speeds. Designed for efficiency and ease of use, it provides a natural riding feel without the complexity of a traditional drivetrain.

Suspension

The Flatlander SD is equipped with a helical spring front fork designed to absorb bumps and smooth out rough surfaces. With 130mm of travel on the 26” model and 100mm on the 24” model, it delivers a comfortable ride across pavement, gravel, and light trail conditions.

Braking System

Equipped with Tektro HD E725 quad piston hydraulic brakes and 203mm rotors, the Flatlander SD delivers powerful and consistent stopping performance. This system provides confident control across a variety of riding environments.

Display

The Flatlander SD features a clean integrated stem display that keeps essential ride data easily accessible. Monitor speed, battery life, assist levels, and ride metrics while making quick adjustments on the go.

Tires

Outfitted with 4-inch CST fat tires in both 24” and 26” options, the Flatlander SD delivers a smooth and stable ride across multiple surfaces. These wide tires provide added comfort and traction on pavement, gravel, and light off-road terrain.

Technology

The Flatlander SD includes Bakcou’s On-Demand Programming (ODP), allowing you to easily switch between Class 1, 2, and 3 riding modes. Optional Bakcou Connect technology adds advanced bike tracking and system monitoring for enhanced security and performance insights.

Utility and Accessories

Designed for everyday versatility, the Flatlander SD includes an integrated rear rack system for carrying gear, commuting essentials, or additional cargo. Compatible with panniers and accessories, it’s built to handle daily rides and extended trips with ease.

Bakcou Flatlander SD Specifications

Bakcou Flatlander SD User Manuals

• Bakcou eBike Owner's Manual
• Bakcou eBike Flatlander Assembly Instructions
• Bakcou eBike Flatlander Display Manual

Bakcou Flatlander SD Display Instructions

In this video, Chloe from Bakcou explains how to use the Flatlander display.